Phase-controlled Fourier-transform Infrared Spectroscopy with Cantilever-enhanced Photoacoustic Detection

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

Cantilever-enhanced photoacoustic spectroscopy (CEPAS) is an extremely sensitive spectroscopic technique and capable of broadband measurements [1]. For example, it has been combined with Fourier-transform infrared spectroscopy (FTIR), where the power of each frequency component in the optical spectrum is modulated at a unique radio or acoustic frequency [2]. The power modulations are transformed into pressure waves by absorption inside the sample cell and detected by the sensitive silicon-cantilever microphone of the CEPAS detector. Due to the sensitivity of CEPAS, the detection bandwidth is limited to low acoustic frequencies (< 1 kHz) leading to the necessity of slow interferometer scans and long measurement times.

Original languageEnglish
Title of host publication2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
Publication date2023
ISBN (Electronic)979-8-3503-4599-5
DOIs
Publication statusPublished - 2023
MoE publication typeA4 Article in conference proceedings
Event2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023 - Munich, Germany
Duration: 26 Jun 202330 Jun 2023

Publication series

Name2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023

Bibliographical note

Publisher Copyright:
© 2023 IEEE.

Fields of Science

  • 116 Chemical sciences

Cite this